抄録
Due to limitations of currently used disaster warning systems, such as accuracy, time constraints, and many uncertainties, the timely evacuation of inhabitants and the reduction of the risk of casualties have become difficult issues for local governments to manage during typhoons or heavy rainfalls. While some researchers have investigated the evacuation decisions made by local governments or inhabitants, most previous studies have not explored the relative weights between each evacuation decision-making factor, and have lacked the data required to create a hierarchical structure necessary for evacuation decision-making. The present study establishes an evacuation decision-making model based on pairwise comparisons and an analytical hierarchy process model for local governments and inhabitants. The results not only offer a strategy for improved disaster prevention, but also provide the foundation for bettering existing disaster warning systems. The findings suggest that evacuation decisions made by different levels of local governments are significantly diverse. Evacuation decisions are also location dependent. Thus, the findings indicate that using only a single disaster warning system is insufficient, and support the establishment of an evacuation decision support system as one of the first priorities of future disaster prevention actions.
